Preparation of ultrafine InN powder by the nitridation of In2O3 or In(OH)3 and its thermal stability

被引：33

作者：

Gao, L ^{[1
]}

Zhang, QH ^{[1
]}

Li, JG ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Surface Mi, Shanghai 200050, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2003年 / 13卷 / 01期

关键词：

D O I：

10.1039/b208105a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Crystalline InN powder has been prepared by the nitridation of In2O3 and In(OH)(3) with NH3 gas for the first time, and ultrafine InN powder in the size range 50-300 nm and with a specific surface area of 8 m(2) g(-1) has been obtained using In2O3 nanoparticles as the starting material. The resulting powders were characterized by XRD, FE-SEM, TEM, TG-DSC and BET surface area techniques. It was found that nanosized In2O3 was completely converted into InN at 600 degreesC within 8 h. The thermal stability of the ultrafine InN powder in air and under a nitrogen atmosphere was also investigated. It was observed that InN began to be oxidized into In2O3 at 389 degreesC and decomposed in the narrow temperature range of 595-696 degreesC in flows of air and N-2, respectively.

引用

页码：154 / 158

页数：5

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